2010/5/18 Greg Barton <greg_barton@yahoo.com>

OK, so a few questions:

What is a CDR? How much data does it contain? Do you load the rules fresh each time you process one? Are there other rules besides the ones listed in the decision table?

--- On Tue, 5/18/10, Antonio Anderson Souza <antonio@voicetechnology.com.br> wrote:

From: Antonio Anderson Souza <antonio@voicetechnology.com.br>
Subject: Re: [rules-users] Jbilling Drools performance
To: "Rules Users List" <rules-users@lists.jboss.org>

Date: Tuesday, May 18, 2010, 9:49 AM

Dear All,

I've finished the tests with the digit per digit comparison without eval, but the performance does not increased a lot, it still taking about 1 minute per CDR, that is so slow for a Telecom Carrier, follow a piece of the new spreadsheet below:

RuleSet pricing

Sequencial true

RuleTable Padrao

CONDITION CONDITION CONDITION CONDITION CONDITION CONDITION CONDITION CONDITION CONDITION CONDITION CONDITION CONDITION CONDITION ACTION PRIORITY

PricingField PricingField PricingField PricingField PricingField PricingField PricingField PricingField PricingField PricingField PricingField PricingField PricingManager manager salience

name digit0 == '$param' name digit1 == '$param' name digit2 == '$param' name digit3 == '$param' name digit4 == '$param' name digit5 == '$param' name digit6 == '$param' name digit7 == '$param' name digit8 == '$param' name digit9 == '$param' name digit10 == '$param' name digit11 == '$param' itemId setPrice($param)

Campo Digito1 Campo Digito2 Campo Digito3 Campo Digito4 Campo Digito5 Campo Digito6 Campo Digito7 Campo Digito8 Campo Digito9 Campo Digito10 Campo Digito11 Campo Digito12 ID do Item Preço Ordem

digit0 5 digit1 5 digit2 9 digit3 9 digit4 3 digit5 2 digit6 6 digit7 3 digit8 1 digit9 0 digit10 0 digit11 9 300 0.32610 1

digit0 5 digit1 5 digit2 9 digit3 8 digit4 3 digit5 2 digit6 6 digit7 3 digit8 5 digit9 0 digit10 8 digit11 9 300 0.32610 2

digit0 5 digit1 5 digit2 9 digit3 8 digit4 3 digit5 2 digit6 6 digit7 3 digit8 5 digit9 0 digit10 8 digit11 8 300 0.32610 3

digit0 5 digit1 5 digit2 9 digit3 8 digit4 3 digit5 2 digit6 6 digit7 3 digit8 5 digit9 0 digit10 8 digit11 7 300 0.32610 4

digit0 5 digit1 5 digit2 9 digit3 8 digit4 3 digit5 2 digit6 6 digit7 2 digit8 5 digit9 0 digit10 0 digit11 6 300 0.32610 5

Do i need to make some special treatment to get Drools indexing my rules? I'm using the guvnor to upload the spreadsheet and compile the rules.

Does anybody have some tips to increase the performance?

Thank you very much,

Antonio Anderson Souza
Voice Technology
http://www.antonioams.com

2010/5/17 Swindells, Thomas <TSwindells@nds.com>

My advice is to try just having a single column:

strValue matches “$param.*”

you could also compare the performance of that to

eval(strValue.startsWith(“$param”))

Also presumably you are only wanting the first matching rule in your table to fire, looking at the table below drools will fire all of the matching rules, this will mean than any phone number with prefix 5511 will be charged at 0.4 as that will be the last rule to fire.

Thomas

From: rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Greg Barton
Sent: 14 May 2010 20:59
To: Rules Users List

Subject: Re: [rules-users] Jbilling Drools performance

No problem. I'm not sure how you'd do this in a decision table (it's probably pretty trivial) but in DRL you'd do:

rule "makePhoneNumber"
when
s: String()
then
insert(new PhoneNumber(s));
retract(s);
end

With two caveats:

1) you need some conditions on the String matched if there are other Strings that don't make PhoneNumbers.
2) The rule could use a salience value higher than the pricing rules, but that isn't necessary.

Actually, there's a third caveat, and it's a big one: this won't work with sequential mode. This is because the rule above would alter working memory with the expectation that the pricing rules would react to the change. If you want to use sequential mode you'll have to convert to PhoneNumber objects before hand. I understand that you're using this Jbilling package, but is there no way you can put an intermediate adapter between the two? It'd be as simple as inserting "new PhoneNumber(someString)" instead of "someString".

--- On Fri, 5/14/10, Antonio Anderson Souza <antonio@voicetechnology.com.br> wrote:

From: Antonio Anderson Souza <antonio@voicetechnology.com.br>
Subject: Re: [rules-users] Jbilling Drools performance
To: "Rules Users List" <rules-users@lists.jboss.org>
Date: Friday, May 14, 2010, 2:16 PM

Dear Greg,

Thanks very much for your reply.

I'm using sequential mode = true

Is there a way to create this PhoneNumber class, and convert the String to the PhoneNumber object inside the Drools? Because I'm using a system called JBilling and it send the phoneNumber as a String.

Sorry if those are basic questions, but I'm a newbie in Drools...

Thank you very much,

Antonio Anderson Souza
Voice Technology
http://www.antonioams.com

2010/5/14 Greg Barton <greg_barton@yahoo.com>

Right off the bat I'd say try to get rid of the eval usage. Can you put the phone number into an object like this:

class PhoneNumber {
private char digit0;
private char digit1;
///...same for the rest of the digits

public char getDigit0() { return digit0; }
public char getDigit1() { return digit1; }
}

Then the conditions would look like this:

digit0 == '$param'

Behind the scenes hopefully this will optimize better. The use of eval won't optimize well.

Are you using sequential mode? This might be a good candidate for that if setting the price does not trigger any other rules to fire.

--- On Fri, 5/14/10, Antonio Anderson Souza <antonioams@gmail.com> wrote:

From: Antonio Anderson Souza <antonioams@gmail.com>
Subject: [rules-users] Jbilling Drools performance
To: "Drools Users Mailing list" <rules-users@lists.jboss.org>
Date: Friday, May 14, 2010, 1:28 PM

Dear All,

I'm deploying a JBilling using Drools in a Telecom Carrier in Brazil, and I'm using Decision tables in xls files to execute the pricing, my pricing table has about 40.000 rules, and I'm getting a terrible performance about 1.5 minute to execute the price of each CDR (Call Detail Record) mediated.

Follow bellow a small piece of my decision table:

RuleTable Padrao

CONDITION

CONDITION

ACTION

PRIORITY

PricingField

PricingManager

manager

salience

name

eval (strValue.charAt(0) == '$param')

eval (strValue.charAt(1) == '$param')

eval (strValue.charAt(2) == '$param')

eval (strValue.charAt(3) == '$param')

eval (strValue.charAt(4) == '$param')

eval (strValue.charAt(5) == '$param')

eval (strValue.charAt(6) == '$param')

eval (strValue.charAt(7) == '$param')

eval (strValue.charAt(8) == '$param')

eval (strValue.charAt(9) == '$param')

eval (strValue.charAt(10) == '$param')

eval (strValue.charAt(11) == '$param')

itemId

setPrice($param)

Campo

Digito1

Digito2

Digito3

Digito4

Digito5

Digito6

Digito7

Digito8

Digito9

Digito10

Digito11

Digito12

ID do Item

Preço

Ordem

destinationnumber

5

5

1

1

3

5

8

8

0

1

8

8

300

0.00000

1

destinationnumber

5

5

1

1

3

5

8

8

0

1

8

7

300

0.00000

2

destinationnumber

5

5

1

1

3

5

8

8

0

1

8

6

300

0.00000

3

destinationnumber

5

5

1

1

3

5

8

8

0

1

8

5

300

0.00000

4

destinationnumber

5

5

1

1

3

5

8

8

0

1

8

4

300

0.00000

5

destinationnumber

5

5

1

1

3

5

8

8

0

1

8

3

300

0.00000

6

destinationnumber

5

5

1

1

3

5

8

8

0

1

8

2

300

0.00000

7

destinationnumber

5

5

1

1

300

0.40000

8

Is it normal? Are there somebody using Jbilling in a similar way? Does anybody can help me?

Best regards,

Antonio Anderson Souza
Voice Technology
http://www.antonioams.com

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